Explanation

Evan Williams, byname Ev,  American computer programmer who, with Jack Dorsey and Biz Stone, founded Twitter.

Twitter launched on: 21 March 2006

Explanation

On 14 October 1999, Musharraf appeared on television to declare a state of emergency and issued a Provisional Constitutional Order that ultimately suspended the writ of the Constitution of Pakistan

Explanation

Keyboard is an input device.

Keyboard is similar to electric typewriter.

Keyboard uses serial port to connect with computer.

Keys on keyboard are of mainly three types:

Alphanumeric keys: letters and numbers 

Punctuation keys: comma, period, semicolon, etc.

Special keys: function keys, arrow keys, caps lock key, etc. 

Explanation

A monitor is an electronic visual computer display that includes a screen, circuitry and the case in which that circuitry is enclosed. Older computer monitors made use of cathode ray tubes (CRT), which made them large, heavy and inefficient.

A monitor is also known as a screen or a visual display unit (VDU).

Explanation

Pakistan has three big sea ports named as Karachi Port, Muhammad Bin Qasim port, and Gwadar port. Port of Muhammad Bin Qasim is the oldest port while the Karachi port is the busiest one

Explanation

The unit of measurement for latitude and longitude is called a degree, which is indicated by a small circle to the upper left after a latitude or longitude is given (ex. 60°).

Latitude, the lines that run left to right on a map or globe, is always listed first when assigning a measurement.